Few unearthly examples of spherical 3D cube images produced by POV-Ray and being displayed using webGL.

 

Click (or touch) and drag to look around.
You can zoom in/out with the mouse wheel.

This should work in all newer versions of Chrome, FF, IE, Edge and Safari
If not, try http://get.webgl.org/

This text is displayed if your browser does not support HTML5 Canvas.